19962166 divided by 398 
We want to divide 19962166 by 398.

Let's proceed to step 1:
When dividing 1 by 398, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 398

Moving on to step 2:
398 goes into 19 0 times with a remainder of 19.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 19 to get 19.
Fetch the next digit (9) from the dividend, attach it to 19 and continue: 199 / 398

Going ahead to step 3:
If we divide 199 by 398, we get 0 and a remainder of 199.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 199, we get 199.
Grab the next digit (6) from the dividend, add it to 199, then carry on: 1996 / 398

Moving on to step 4:
1996 divided by 398 is 5 with a remainder of 6.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 1990 from 1996 and we're left with 6.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 398

Let's proceed to step 5:
The number 398 fits into 62 0 times, leaving a remainder of 62.
Write down 0 as next digit of the result. 
Result so far: 50.0
If we subtract 0 from 62, we get 62.
Fetch the next digit (1) from the dividend, attach it to 62 and continue: 621 / 398

Going ahead to step 6:
When dividing 621 by 398, we get 1 with a remainder of 223.
Write down 1 as next digit of the result. 
Result so far: 501.0
If we take 398 away from 621, we end up with 223.
Bring next digit (6) of the dividend behind the 223 and repeat the process: 2236 / 398

On to step 7:
The number 398 fits into 2236 5 times, leaving a remainder of 246.
Record the quotient 5 as the next digit in the result. 
Result so far: 5015.0
If we subtract 1990 from 2236, we get 246.
Take the next digit (6) from the dividend and append it to 246, then repeat: 2466 / 398

Going ahead to step 8:
2466 divided by 398 is 6 with a remainder of 78.
The number 6 becomes the next digit in our result. 
Result so far: 50156.0
Deduct 2388 from 2466 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 9:
398 can be fit into 780 1 times, resulting in a remainder of 382.
Use 1 as the next digit of our solution. 
Result so far: 50156.1
Subtract 398 from 780 to get 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Step 10:
If we divide 3820 by 398, we get 9 and a remainder of 238.
The next digit of our result is 9. 
Result so far: 50156.19
If we subtract 3582 from 3820, we get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Moving on to step 11:
If we divide 2380 by 398, we get 5 and a remainder of 390.
The number 5 becomes the next digit in our result. 
Result so far: 50156.195
If we subtract 1990 from 2380, we get 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Advancing to step 12:
When dividing 3900 by 398, we get 9 with a remainder of 318.
The next digit of our result is 9. 
Result so far: 50156.1959
If we subtract 3582 from 3900, we get 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Step 13:
398 can be fit into 3180 7 times, resulting in a remainder of 394.
Write down 7 as next digit of the result. 
Result so far: 50156.19597
Subtract 2786 from 3180 to get 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Moving on to step 14:
When dividing 3940 by 398, we get 9 with a remainder of 358.
The next digit of our result is 9. 
Result so far: 50156.195979
If we subtract 3582 from 3940, we get 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Going ahead to step 15:
398 goes into 3580 8 times with a remainder of 396.
Use 8 as the next digit of our solution. 
Result so far: 50156.1959798
Subtracting 3184 from 3580 leaves us with 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

Moving on to step 16:
398 can be fit into 3960 9 times, resulting in a remainder of 378.
Record the quotient 9 as the next digit in the result. 
Result so far: 50156.19597989
If we subtract 3582 from 3960, we get 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

The final result is 50156.19597989 with a remainder of 3.78e-07.